. >> reporter: celebrities and their bodyguards, from lindsay lohan to justin bieber to rihanna in london. hollywood bodyguards can stir up trouble. clashing with paparazzi and unruly fans, pushing boundaries and even getting hurt and killed. that's where kent moyer and his grouch 200 agents come in. moyer and partner keith wiggins wired with earpieces today are tailing actor jimmy bennett, he's 17 and already a veteran actor with a ton of movie and tv credits, recently on abc ap "no ordinary family" and cameo as future star fleet captain in "star trek." >> citizen, what is your name? >> reporter: hardly an a-lister but even he has bodyguards. >> is it strange having people tailing you everywhere and talking into their -- >> definitely is weird. it causes attention. >> reporter: when he calls on them his bodyguards are with him every step of the way but we had to ask, is all of this really necessary? no offense, but you're not yet a household name like brad pitt. >> i just felt like it was needed, i had too many incidents and too many things, i like having those guys around. >> reporter: